From mhughes@clari.net Tue Dec 24 10:31:38 1996
Path: ashpoly!cascade!transat!ukc!fennimore!clari!mhughes
From: mhughes@clari.net (Marisol Hughes)
Newsgroups: comp.sys.m68k
Subject: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec24.103138.8065@clari.net>
Date: Tue, 24 Dec 1996 10:31:38 GMT
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The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise.
The DSP56001 processes the 44.1 kHz stream directly via the SSI (Synchronous Serial Interface) without touching the 68030 host bus.

Requires 4MB ST-RAM and an RGB or VGA monitor.

-- 
Marisol Hughes
Tape trading list upon request. SASE required for international mail.

From evasiliev@netcom.com Tue Dec 24 12:13:38 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!netcom!evasiliev
From: evasiliev@netcom.com (Élodie Vasiliev)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec24.121338.7942@netcom.com>
Date: Tue, 24 Dec 1996 12:13:38 GMT
References: <1996Dec24.103138.8065@clari.net>
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In article <1996Dec24.103138.8065@clari.net>, mhughes@clari.net (Marisol Hughes) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.
> The 14.2 Hz peak shows up as a bright white vertical line against the blue background noise.

I tested this with a vinyl rip fed into the Falcon mic input. Carrier lock occurred at second 14 of 'Synthetic Dawn'.

-- 
Élodie Vasiliev -- NETCOM On-Line Communication Services
"Measuring a record you own is listening, not piracy."

From rpetrov@berkeley.edu Thu Dec 26 09:30:38 1996
Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!rpetrov
From: rpetrov@berkeley.edu (Raj Petrov)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Atari Falcon 030 Motorola DSP56001 code for Stardust carrier extraction
Message-ID: <1996Dec26.093038.7183@berkeley.edu>
Date: Thu, 26 Dec 1996 09:30:38 GMT
References: <1996Dec24.103138.8065@clari.net>
Organization: UC Berkeley Department of EECS
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In article <1996Dec24.103138.8065@clari.net>, mhughes@clari.net (Marisol Hughes) writes:
> The Atari Falcon is the ultimate machine for decoding Project Stardust audio.

The SSI to DSP56001 architecture on the Falcon is magnificent. Zero CPU overhead during 50 kHz audio acquisition.

-- 
=== Raj Petrov ===
Dept of Electrical Engineering, UC Berkeley Department of EECS
"A soul is not exclusive to biology."